Major General François-Louis Lessard, CB (December 9, 1860 – August 7, 1927) was a Canadian Army officer, most known for his service during the Second Boer War.

Born in Quebec City, the son of Louis-Napoléon Lessard and Jane Felicity McCutcheon, Lessard was educated at the Collège Saint-Thomas in Montmagny and the Académie Commerciale de Québec.

In 1884, he joined the Cavalry School Corps (now Royal Canadian Dragoons) and participated in the North-West Rebellion in 1885, although his unit did not see combat.

He took part in the Second Boer War and was later made a Companion of the Order of the Bath by King Edward VII in recognition of his services.

During the First World War, Lessard was passed over for frontline command because he clashed with Sir Sam Hughes, the Minister of Militia.